Gurobi 5.0.1 (linux64) logging started Wed Apr 24 05:10:12 2013 Optimize a model with 957 rows, 75777 columns and 151467 nonzeros Presolve time: 0.12s Presolved: 957 rows, 75777 columns, 151467 nonzeros Variable types: 75690 continuous, 87 integer (87 binary) Root relaxation: objective 1.214317e+05, 3808 iterations, 0.16 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 121431.672 0 6 - 121431.672 - - 0s H 0 0 124696.00000 121431.672 2.62% - 0s H 0 0 122178.00000 121431.672 0.61% - 0s 0 0 121589.840 0 5 122178.000 121589.840 0.48% - 0s 0 0 121601.860 0 5 122178.000 121601.860 0.47% - 0s 0 0 121601.860 0 6 122178.000 121601.860 0.47% - 1s 0 0 121601.860 0 5 122178.000 121601.860 0.47% - 1s 0 0 121604.301 0 4 122178.000 121604.301 0.47% - 1s 0 0 121607.974 0 4 122178.000 121607.974 0.47% - 1s 0 0 121607.974 0 4 122178.000 121607.974 0.47% - 1s 0 0 121607.974 0 4 122178.000 121607.974 0.47% - 1s 0 0 121607.974 0 4 122178.000 121607.974 0.47% - 1s 0 0 121607.974 0 4 122178.000 121607.974 0.47% - 2s 0 2 121624.123 0 4 122178.000 121624.123 0.45% - 2s H 4 4 121815.23636 121670.031 0.12% 44.2 2s H 5 4 121765.27966 121670.031 0.08% 36.0 2s H 6 3 121750.00000 121670.571 0.07% 31.7 2s * 10 4 8 121690.00000 121673.908 0.01% 30.0 2s Cutting planes: Implied bound: 59 Flow cover: 1 Explored 13 nodes (7022 simplex iterations) in 2.68 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.216900000000e+05, best bound 1.216878662075e+05, gap 0.0018%